27161013 has 16 divisors (see below), whose sum is σ = 41587200. Its totient is φ = 15594480.

The previous prime is 27161011. The next prime is 27161027. The reversal of 27161013 is 31016172.

It is not a de Polignac number, because 27161013 - 2¹ = 27161011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27161011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21033 + ... + 22286.

It is an arithmetic number, because the mean of its divisors is an integer number (2599200).

Almost surely, 2^27161013 is an apocalyptic number.

It is an amenable number.

27161013 is a deficient number, since it is larger than the sum of its proper divisors (14426187).

27161013 is a wasteful number, since it uses less digits than its factorization.

27161013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43352.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 27161013 is about 5211.6228758420. The cubic root of 27161013 is about 300.5951629339.

Adding to 27161013 its reverse (31016172), we get a palindrome (58177185).

The spelling of 27161013 in words is "twenty-seven million, one hundred sixty-one thousand, thirteen".